@benjaminlesne.bsky.social
Web Developer | mainly with React https://benjamin-lesne.dev/
📚 Whenever I see useCallback, I wonder: why do we need it here? And a lot of the times, when I look deeper, I see that it actually doesn’t do anything. I think a lot of code-bases would be better of just not memoizing at all - and then let the compiler do it for you:
28.07.2025 16:22 — 👍 74 🔁 13 💬 9 📌 3
Absolutely fantastic write-up by @joshwcomeau.com on the State of Devs survey results. Contains a lot of correlations that aren't even in the main report!
www.joshwcomeau.com/email/2025-0...
I turn on `verbatimModuleSyntax` and jest starts to fail because our jest.config is in TS with ESM syntax, but package.json doesn’t say type:module so now it assumes CJS and everything is on fire either way 🔥. This is what hell must feel like 😂
10.07.2025 18:00 — 👍 22 🔁 1 💬 3 📌 0Now that the project is live, I’m looking for new opportunities!
If you're looking for a developer who can turn complex ideas into powerful tools, my DMs are open!
Reposts appreciated 🙏
#WholeLifeCarbon #EmbodiedCarbon #PolicyScience #OpenScience
Also, special thanks to the team at @kuleuvenuniversity.bsky.social and Technische Universität Graz - @martinroeck.com, Nicolas Alaux, Delphine Ramon, Alexander Passer, Karen Allacker and Ronny Moreas.
The collaboration with all of you was fantastic.
A huge thank you to Shadwa Eissa for the amazing data visualization and overall design! I closely collaborated with her to build the app.
10.07.2025 10:01 — 👍 1 🔁 0 💬 1 📌 0On the tech side, I built the app entirely from scratch with:
🔹 Reactjs (@react.dev)
🔹 TanStack Router (@tanstack.com)
🔹 React Query (@tkdodo.eu)
🔹 Shadcn/ui (@shadcn.com)
🔹 Recharts
🔹 Flask
🔹 DuckDB (@duckdb.org)
The data comes from building LCA and building stock modelling of KU Leuven and TU Graz developed as part of the ‘Analysis of Life-cycle Greenhouse Gas Emissions and Removals of EU Buildings and Construction’ study funded by the European Commission
See more on the About page of the Scenario Explorer
- The material with the highest emissions?
👉 Line chart
- How emissions change over time for Residential buildings?
👉 Stacked area chart
- Compare emissions between two scenarios?
👉 Stacked bar chart
Users can view emissions for each building type, country, material, and more!
You can download the displayed data as an image or as a spreadsheet and visualize it with three type of graphs in the app.
If you want to know...
👉 Explore the web app at ae-scenario-explorer.cloud.set.kuleuven.be
👉 The code and related papers via linktr.ee/wlcscenarioe...
🚀 The WLC Scenario Explorer is now LIVE!
This open-source tool explore different possible scenarios for whole life cycle greenhouse gas emissions of buildings across Europe.
More info below! 🧵👇
In case you need a distraction from the current news cycle, part 1 of the State of Devs survey results is now available!
2025.stateofdevs.com/en-US
Years of Experience vs Job Happiness.
There is a bump after 10 years. Why? Survivor bias?
I'm at about -18k lines of code for the @sentry.io codebase thanks to knip 🙌
github.com/getsentry/se...
Today I learned why this:
const value = useRef(null)
if (!value.current) {
value.current = init()
}
_can_ be better than:
const [value] = useState(init)
Hint: StrictMode is involved 😜
Guess it’s time to update my blogpost / write a new one.
And look at that brand new @intellijidea.com plugin by @wordman.dev for highlighting arktype types 🙌
18.04.2025 16:12 — 👍 9 🔁 1 💬 1 📌 0
📦 beekeeper-studio / beekeeper-studio
⭐ 18,448 (+31)
🗒 TypeScript
Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and Windows.
⚛️📝 New on Overreacted: JSX Over The Wire overreacted.io/jsx-over-the...
15.04.2025 15:54 — 👍 284 🔁 51 💬 31 📌 15why bluesky "feeds" don't work, a thread
12.04.2025 15:47 — 👍 508 🔁 78 💬 18 📌 27
📦 fuma-nama / fumadocs
⭐ 3,746 (+83)
🗒 TypeScript
The beautiful docs framework with Next.js.
Ouais, le template de Bluesky est franchement pas clair.
J’en ai pondu un plus simple ici :
github.com/BenjaminLesn...
Et j’explique le tout, étape par étape, ici :
blog.benjamin-lesne.dev/blog/How-to-...
En espérant que ça t’aide (même 4 mois plus tard)
@gsathya.bsky.social I just saw in a talk yesterday (by
@mxmlnznr.bsky.social) that the React Compiler uses === to compare with cached values. IIRC, memo in React uses Object.is instead, which is not quite the same. What's the reasoning behind this being different?
Two cool things in this snippet:
1. You can use 'glob' from Node instead of a library! (still experimental, available in 22+)
But glob returns an async iterator, which can be annoying to work with. So...
2. Array.fromAsync lets you turn an async iterator into an array. Beautiful.
my final project as part of my tenure at Microsoft, aside from that NPM patch (lol), is this lil' guy: github.com/microsoft/li...
Just a small, but v v fast IPC lib that lets you make synchronous calls to a child process from node, while the child can execute callbacks *from you* before you return.
📚 I haven’t blogged in quite a while (new job I guess), but I got so many questions about how I got started with open source at React Paris that it was finally time for me to write that down:
31.03.2025 09:21 — 👍 70 🔁 6 💬 5 📌 0
Amazing talk! 👏
#react-query
Les parties suivantes se trouvent ici:
www.youtube.com/watch?v=tKkP...
🎥 You can already watch my talk "React Query API Design - Lessons Learned: The Extended Version" from #ReactParis on YouTube: www.youtube.com/watch?v=l3Px...
25.03.2025 13:40 — 👍 27 🔁 5 💬 0 📌 2Great talk, and TIL about this cool trick
Pragmatism: use "Error" instead of "unknown"
But gives the ability for users to opt out of this opinionated choice with TS declaration merging
